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Method for manufacturing silver cadmium oxide material and product

A technology of silver cadmium oxide and manufacturing method, which is applied in the direction of contacts, electrical components, electric switches, etc., can solve the problems of resistance to electrical wear and welding, and arc extinguishing effect needs to be strengthened, so as to achieve good resistance to welding , Enhanced arc extinguishing effect and low contact resistance

Inactive Publication Date: 2015-05-20
SICHUAN FEILONG ELECTRIC MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its resistance to electrical wear, welding resistance, and arc extinguishing effect need to be strengthened

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, the manufacture method of a kind of silver cadmium oxide material are as follows:

[0022] a. Proportionate ingredients, the percentage by weight is: cadmium carbonate 10%, nickel carbonate 0.1%, manganese carbonate 0.05%, and the rest is silver nitrate;

[0023] B, the above-mentioned cadmium carbonate, nickel carbonate and manganese carbonate are dissolved in the same container with excessive dilute nitric acid, silver nitrate is dissolved with an appropriate amount of pure water, and then the two solutions are mixed and stirred;

[0024] c. Prepare a saturated solution of sodium carbonate at 40-80°C;

[0025] d. Add the saturated solution of sodium carbonate to the previously configured mixed solution, and stir while adding to form a precipitate. During the test, use pH test paper until the pH value of the entire solution reaches 11, then stop adding;

[0026] e. Rinse the generated sediment repeatedly with pure water and dry it;

[0027] f. Put the ...

Embodiment 2

[0033] Embodiment 2, the manufacture method of a kind of silver cadmium oxide material are as follows:

[0034] a. Ingredients in proportion, percentage by weight: cadmium carbonate 30%, nickel carbonate 0.5%, manganese carbonate 0.2%, and the rest is silver nitrate;

[0035] B, the above-mentioned cadmium carbonate, nickel carbonate and manganese carbonate are dissolved in the same container with excessive dilute nitric acid, silver nitrate is dissolved with an appropriate amount of pure water, and then the two solutions are mixed and stirred;

[0036] c. Prepare a saturated solution of sodium carbonate at 40-80°C;

[0037] d. Add the saturated solution of sodium carbonate to the previously configured mixed solution, and stir while adding to form a precipitate. During the test, use pH test paper until the pH value of the entire solution reaches 11, then stop adding;

[0038] e. Rinse the generated sediment repeatedly with pure water and dry it;

[0039] f. Put the dried sed...

Embodiment 3

[0045] Embodiment 3, a kind of manufacturing method of silver cadmium oxide material is as follows:

[0046] a. Ingredients in proportion, the percentage by weight is: cadmium carbonate 20%, nickel carbonate 0.3%, manganese carbonate 0.15%, and the rest is silver nitrate;

[0047] B, the above-mentioned cadmium carbonate, nickel carbonate and manganese carbonate are dissolved in the same container with excessive dilute nitric acid, silver nitrate is dissolved with an appropriate amount of pure water, and then the two solutions are mixed and stirred;

[0048] c. Prepare a saturated solution of sodium carbonate at 40-80°C;

[0049] d. Add the saturated solution of sodium carbonate to the previously configured mixed solution, and stir while adding to form a precipitate. During the test, use pH test paper until the pH value of the entire solution reaches 11, then stop adding;

[0050] e. Rinse the generated sediment repeatedly with pure water and dry it;

[0051] f. Put the drie...

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PUM

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Abstract

The invention discloses a method for manufacturing a silver cadmium oxide material. The method comprises the following steps: (a) preparing 10-30 percent of cadmium carbonate, 0.1-0.5 percent of nickel carbonate, 0.05-0.2 percent of manganese carbonate and the balance of silver nitrate; (b) dissolving by using excessive dilute nitric acid, dissolving the silver nitrate by using pure water, mixing and stirring; (c) preparing a saturated sodium carbonate solution; (d) adding the sodium carbonate solution into a mixed solution while stirring, so as to generate a precipitate; and stopping adding after the PH value of the solution reaches 11; (e) repeatedly washing the generated precipitate and drying; (f) heating to the temperature of 300-450 DEG C, and keeping the temperature; (g) introducing hydrogen after the temperature of the powder is lower than 60 DEG C, heating to the temperature of 250-320 DEG C, keeping the temperature, and then cooling to room temperature; (h) performing ball milling on the powder, sieving the powder by using a 200-meshes sieve; (i) oxidizing in a rotary furnace, introducing compressed air, heating to the temperature of 300 DEG C, keeping the temperature, and cooling to room temperature; (j) performing ball milling on the powder, sieving the powder by using the 200-meshes sieve, loading the powder in a mold for isostatic pressing; and (k) sintering the material for 2-3 hours, and performing extrusion forming for later use.

Description

technical field [0001] The invention relates to a manufacturing method and a product of an alloy material, in particular to a manufacturing method and a product of a silver cadmium oxide material. Background technique [0002] As we all know, silver cadmium oxide material is a very widely used electrical contact material, widely used in magnetic starters, high-power relays, ignition tube switch contacts of electric welding machines, and aviation electrical contacts. The traditional process uses powder metallurgy, internal oxidation, or oxidation-powder metallurgy to manufacture silver-cadmium oxide alloys, although alloys with relatively uniform distribution of cadmium oxide structures can be obtained. However, its resistance to electrical wear, fusion welding, and arc extinguishing effects need to be strengthened. Contents of the invention [0003] The purpose of the present invention is to provide a silver cadmium oxide material with higher electrical conductivity, bett...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C5/06C22C1/04C22C1/10H01H1/0237
Inventor 李秋良胡迎春陈远国
Owner SICHUAN FEILONG ELECTRIC MATERIALS
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